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package com.wireguard.android.util;

import java.util.Collection;
import java.util.Comparator;
import java.util.Set;

/**
 * A keyed list where all elements are sorted by the comparator returned by {@code comparator()}
 * applied to their keys.
 */

public interface SortedKeyedList<K, E extends Keyed<? extends K>> extends KeyedList<K, E> {
    Comparator<? super K> comparator();

    K firstKey();

    Set<K> keySet();

    K lastKey();

    Collection<E> values();
}